CN209506105U - A kind of mounting device of Helicopter Main Reducer - Google Patents
A kind of mounting device of Helicopter Main Reducer Download PDFInfo
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- CN209506105U CN209506105U CN201821820880.7U CN201821820880U CN209506105U CN 209506105 U CN209506105 U CN 209506105U CN 201821820880 U CN201821820880 U CN 201821820880U CN 209506105 U CN209506105 U CN 209506105U
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- strut
- mounting base
- joint assembly
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Abstract
The utility model discloses a kind of mounting devices of Helicopter Main Reducer, belong to technical field of mechanical transmission.It include: that multiple masters subtract strut, multiple flexible hanging devices, the first mounting base and the second mounting base；Master subtracts strut and is made of joint assembly, the body of rod and lock pad, and body of rod both ends are threadedly coupled with joint assembly, and passes through lock pad and lock；It is main to subtract that strut one end is hinged with main reducing gear, and the other end and the first mounting base are hinged；Flexible hanging device is made of taper pin assemblies, nylon bush and fastener, and taper pin assemblies one end is integral using nested encryptions with nylon bush, and the shell for passing through main reducing gear is connect with the second mounting base；The other end is fixed on main reducing gear by fastener.The deformation of components, light-weight on the utility model adaline, and stay length is adjustable, lower to the accuracy of manufacture requirement of part, improves its yield rate, reduces manufacturing cost；Master subtracts strut and is easy to carry out surface anticorrosive processing, improves its whole anti-corrosion capability.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, and in particular to a kind of mounting device of Helicopter Main Reducer.
Background technique
Main reducing gear is the important component of helicopter, it passes to the power of engine according to the revolving speed and steering of regulation
Main rotor, tail transmission shaft component and attachment, while the lift of main rotor, shearing, moment of flexure and reaction torque are passed into fuselage, it is driven
The flexible hanging device of system is one of the component being reliablely and stablely connected to main reducing gear on fuselage, and bears main reducing gear
The load and torque transmitted.
The mounting assembly of existing Helicopter Main Reducer, including master subtract strut and flexible hanging device, and the main strut that subtracts is weldering
Fitting is made of knock-off joint component and the body of rod, and flexible hanging device is made of forked members and fastener.Due to by zero on machine
The requirement of installation, and oscillating bearing or bar is very likely not achieved in the influence of part foozle and deformation, the main length for subtracting strut
When body is damaged, whole strut, higher cost are needed to change；Flexible hanging device structure is complex, and needs to grasp on biggish machine
Make space.Wherein, strut mainly transmits the lift and moment of flexure of main rotor, and flexible hanging device mainly transmits the torque of rotor.
Former main reducing gear mounting device is primarily present following problems:
1. master subtracts strut
1) welding quality is more difficult to control, and postwelding stay length size can not adjust, and leads to the high rejection rate of strut, and master subtracts
Assembling quality is difficult to be optimal；
2) by welded limitation, the partial structurtes such as strut inner surface and connector are difficult to arrange using more preferably surface anticorrosion
It applies；
3) one integral piece more change owner is needed to subtract strut, cost is larger after oscillating bearing damage in use.
The problems such as 2. flexible hanging device, presently, there are structure is complicated, hands- operation space requirement is high, weight weight.
With the development of Helicopter Technology, the light-weight design of components and the requirement of structural compactness are more next on helicopter
It is higher, both needed its light-weight the main reducing gear mounting assembly of transmission system, structure is simple, compact, it is also necessary to have height
Corrosion resistance, the low accuracy of manufacture and maintenance cost etc..
Utility model content
The purpose of this utility model: to solve the above-mentioned problems, the utility model proposes a kind of Helicopter Main Reducers
Mounting device, main reducing gear and taper pin assemblies are connected using self-locking nut, structure is simple, compact, to hands- operation space
It is required that low；Vibration damping is carried out using nylon bush, effectiveness in vibration suppression is suitable with existing flexible hanging device.
The technical solution of the utility model includes: a kind of mounting device of Helicopter Main Reducer, multiple masters subtract strut, Duo Gerou
Property suspension arrangement, the first mounting base and the second mounting base；
The master subtracts strut and is made of joint assembly, the body of rod and lock pad, the body of rod both ends and the joint assembly spiral shell
Line connection, and locked by lock pad；
The master subtracts that strut one end is hinged with main reducing gear, and the other end and the first mounting base are hinged；
The flexible hanging device is made of taper pin assemblies, nylon bush and fastener, taper pin assemblies one end
It is integral using nested encryptions with the nylon bush, and the shell for passing through main reducing gear is connect with the second mounting base；The other end
It is fixed on main reducing gear by fastener.
Preferably, the lock pad include: the first installation while and when the second installation；
Second installation side is integrally S-type, with the body of rod tight fit；
First installation side is connect with the joint assembly, and second installation side is mounted on the joint assembly.
Preferably, one end of the joint assembly is provided with strip mounting hole, and first installation side is inserted in the length
In bar shaped mounting hole.
Preferably, the body of rod both ends setting is fluted, the groove and second installation side cooperation.
Preferably, the nylon bush and taper pin assemblies interference fit are installed.
Preferably, the nylon bush is socketed on the pivot pin of second mounting base, and with second mounting base
Pivot pin clearance fit.
Preferably, the surface that the master subtracts strut carries out anti-corrosion treatment.
Preferably, the joint assembly is provided with oscillating bearing.
Technical solutions of the utility model the utility model has the advantages that a kind of mounting device of Helicopter Main Reducer of the utility model,
The deformation of components, light-weight on adaline, and stay length is adjustable, requires lower, raising to the accuracy of manufacture of part
Its yield rate reduces manufacturing cost；Master subtracts strut and is easy to carry out surface anticorrosive processing, improves its whole anti-corrosion capability.
Detailed description of the invention
One preferred embodiment structural schematic diagram of the mounting device of Fig. 1 the utility model Helicopter Main Reducer；
Fig. 2 is that the master of embodiment illustrated in fig. 1 subtracts pole structure schematic diagram；
Fig. 3 is the sectional view along A-A of embodiment illustrated in fig. 2；
Fig. 4 is embodiment illustrated in fig. 1 flexible hanging device structural schematic diagram；
Wherein, 1- master subtracts strut, 2- flexible hanging device, 3- joint assembly, the 4- body of rod, 5- lock pad, 6- taper pin bank
Part, 7- nylon bush, 8- fastener, the first mounting base of 9-, the second mounting base of 10-, 11- main reducing gear, 51- first install side,
52- second installs side.
Specific embodiment
To keep the purposes, technical schemes and advantages of the utility model implementation clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
Applying example is the utility model a part of the embodiment, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
It is exemplary, it is intended to for explaining the utility model, and should not be understood as limiting the present invention.It is practical new based on this
Embodiment in type, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, fall within the protection scope of the utility model.The embodiments of the present invention are described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
It is as shown in Figures 1 to 4: a kind of mounting device of Helicopter Main Reducer, comprising: multiple masters subtract strut 1, Duo Gerou
Property suspension arrangement 2, the first mounting base 9 and the second mounting base 10；
Master subtracts strut 1 and is made of joint assembly 3, the body of rod 4 and lock pad 5, and 4 both ends of the body of rod and joint assembly 3 use screw thread
Connection, and carried out by lock pad 5 locking, main 1 one end of strut and the main reducing gear of subtracting by bolted splice, pacify with first by the other end
Dress seat 9 passes through bolted splice；
It is threadedly coupled since 4 both ends of the body of rod are used with joint assembly 3, it is possible to adjust the main length for subtracting strut 1；
In the present embodiment, joint assembly 3 is provided with oscillating bearing, based on subtract strut 1 provide multi-angle installation, to adapt to make
The influence of error and deformation is made, and reduces the accuracy of manufacture requirement of part.
Furthermore master subtracts 1 long-time use of strut and has certain abrasion, so only needing to change the joint shaft in joint assembly 3
It holds, achievees the purpose that save the cost.
Flexible hanging device 2 is made of taper pin assemblies 6, nylon bush 7 and fastener 8,6 one end of taper pin assemblies and institute
Stating nylon bush 7 uses nested encryptions integral, and the shell for passing through main reducing gear 11 is connect with the second mounting base 10；The other end
It is fixed on main reducing gear 11 by fastener 8.
For flexible hanging device using self-locking nut connection main reducing gear 11 and taper pin assemblies 6, structure is simple, compact, right
Hands- operation space requirement is low；Vibration damping is carried out using nylon bush 7, effectiveness in vibration suppression is suitable with existing flexible hanging device.
In the present embodiment, lock pad 5 includes: the first installation when 51 and second are installed 52, and the second installation side 52 is whole in S
Type has certain chucking power, can sufficiently be bonded and be clamped in one end of the body of rod 4 with the body of rod 4；First installation side 51 and connector
Component 3 connects, and the second installation side 52 is mounted on joint assembly 3.
It is to be understood that one end of joint assembly 3 is provided with strip mounting hole, the first installation side 51 is inserted in strip
In shape mounting hole.
It is to be understood that the setting of 4 both ends of the body of rod is fluted, groove and the second installation side 52 cooperate, the second installation side 52
Clamping is mounted in groove, and the convex portion on the second installation side 52 is bonded with groove wall, connects into the body of rod 4 with joint assembly 3
One.
In the present embodiment, 6 big end of taper pin assemblies is provided with the mounting groove of nylon bush 7, nylon bush 7 and cone pin
The interference fit installation of component 6, the two link into an integrated entity, and prevent nylon bush 7 from sliding.
In the present embodiment, nylon bush 7 is socketed on the pivot pin of the second mounting base 10, and between the pivot pin of the second mounting base
Gap cooperation, using the shock sucking function of nylon bush 7, improves the effectiveness in vibration suppression of main reducing gear.
In the present embodiment, the main each piece surface for subtracting strut 1 individually carries out anti-corrosion treatment, improves master and subtracts strut entirety
Anti-corrosion capability.
It is to be understood that the body of rod 4, lock pad 5 use aluminium alloy, joint assembly 3 uses high-strength stainless steel, cone pin
Component 6 is made of stainless steel.
A kind of mounting device of Helicopter Main Reducer of the utility model, the deformation of components, light-weight on adaline, and
And stay length is adjustable, and it is lower to the accuracy of manufacture requirement of part, its yield rate is improved, manufacturing cost is reduced；New configuration support
Bar is easy to carry out surface anticorrosive processing, improves its whole anti-corrosion capability；New conformational flexibility suspension arrangement is compact-sized, installation
It is convenient, and weight ratio common structure at least reduces 20%.
Finally it is noted that above embodiments are only to illustrate the technical solution of the utility model, rather than it is limited
System.Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should be managed
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the utility model that it does not separate the essence of the corresponding technical solution
The spirit and scope of technical solution.
Claims (8)
1. a kind of mounting device of Helicopter Main Reducer characterized by comprising it is outstanding that multiple masters subtract strut (1), multiple flexibilities
Hang device (2), the first mounting base (9) and the second mounting base (10)；
The master subtracts strut (1) and is made of joint assembly (3), the body of rod (4) and lock pad (5), the body of rod (4) both ends with it is described
Joint assembly (3) is threadedly coupled, and is locked by lock pad (5)；
The master subtracts strut (1) one end and main reducing gear is hinged, and the other end and the first mounting base (9) are hinged；
The flexible hanging device (2) is made of taper pin assemblies (6), nylon bush (7) and fastener (8), the cone pin
Component (6) one end is integral using nested encryptions with the nylon bush (7), and passes through the shell and second of main reducing gear (11)
Mounting base (10) connection；The other end is fixed on main reducing gear (11) by fastener (8).
2. the mounting device of Helicopter Main Reducer according to claim 1, it is characterised in that: lock pad (5) packet
Include: the first installation is when (51) and second are installed (52)；
Second installation side (52) is whole S-type, with the body of rod (4) tight fit；
First installation side (51) is connect with the joint assembly (3), and second installation side (52) is mounted on the connector
On component (3).
3. the mounting device of Helicopter Main Reducer according to claim 2, it is characterised in that: the joint assembly (3)
One end be provided with strip mounting hole, first installation side (51) is inserted in the strip mounting hole.
4. the mounting device of Helicopter Main Reducer according to claim 2, it is characterised in that: the body of rod (4) both ends
Fluted, the groove and the second installation side (52) cooperation are set.
5. the mounting device of Helicopter Main Reducer according to claim 1, it is characterised in that: the nylon bush (7)
It is interference fitted and installs with the taper pin assemblies (6).
6. the mounting device of Helicopter Main Reducer according to claim 1, it is characterised in that: the nylon bush (7)
It is socketed on the pivot pin of second mounting base (10), and the pivot pin clearance fit with second mounting base.
7. the mounting device of Helicopter Main Reducer according to claim 1, it is characterised in that: the master subtracts strut (1)
Surface carry out anti-corrosion treatment.
8. the mounting device of Helicopter Main Reducer according to claim 1, it is characterised in that: the joint assembly (3)
It is provided with oscillating bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820880.7U CN209506105U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting device of Helicopter Main Reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820880.7U CN209506105U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting device of Helicopter Main Reducer |
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| Publication Number | Publication Date |
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| CN209506105U true CN209506105U (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821820880.7U Active CN209506105U (en) | 2018-11-06 | 2018-11-06 | A kind of mounting device of Helicopter Main Reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374856A (en) * | 2021-07-08 | 2021-09-10 | 中国航发湖南动力机械研究所 | Reducer reaction torque force transmission vibration isolation device and installation method |
-
2018
- 2018-11-06 CN CN201821820880.7U patent/CN209506105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374856A (en) * | 2021-07-08 | 2021-09-10 | 中国航发湖南动力机械研究所 | Reducer reaction torque force transmission vibration isolation device and installation method |
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